Lock



Oct. 21 1924. 1,512,141

- S.SEGAL LOCK A Filed Dec. 3l 1919 Patented Oct. 21, 1924.

' 1,512,141 UNITED STATES PATENT OFFICE..

SAMUEL sEGAL, or NEW YORK, N. Y., 'AssIGNoR rro'sneAL METAL. PRODUCTS 'com PANY, INC., oF-NEW YORK, N. Y., A CORPORATION or DELAWARE.

LOCK.

Application led December 31, 1919'. Serial No. 348,584.

To all whom zt may comem:

Be it known that I, SAMUEL SEGAL, a citizen of the United States, and a resident of New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Locks, of which the following is a specification.

My invention relates to locks of the swinging door type and has for its object the production of a lock of simpllcity of `construction which shall be so constructed as to prevent an unauthorized entrance through the door by a jimmying of thev lock or by other means.

Other objects of the invention will be apparent from the accompanying description setting forth the details of construction of the invention, the invention consisting more particularly in the novel parts and combi-- nations of parts hereinafter described and then's cified inthe claim.

In t. e accompanying drawing showing a practical embodiment of the invention: y Fig. 1 is a. front elevation of my improved lock shown applied to a door.

Fig. 2 is a rear elevation of the lock with its cover late removed.`

Fig. 3 1s a horizontal section on the line 3 3 of Fig. 4. v

Fig. 4 is a. vertical cross-section on the line 4-4 of Fig. 3. v

Fig. 5 is a perspective view of the lock keper.

eferring in detail to the several figures of the drawing: y.

.1 indicates af door and 2 the door jamb or wall adjacent the door. A casing 3 containing the locking mechanism is provided with a removable cover plate 4, the casing Y being fastened to the inner face of the door preferably by suitable screws 5 as shown. The end of the casingv extends inwardly an appreciable distance over the spacebetween the door and door j amb, that portion of the casing which registers with and preferafbl enters the space between the door and oor jamb when the door is closed being solid and rovided with a rib or bead-i ed portion 6 see Fig. 3). Thus if a tool or )immy is inserted withinvthe space between the door and door jamb in an attempt to dislodge or break the lock, it will merely strike against the beaded or reinforced solid portion 6 and will not strike against or engage the mechanism within the lock or the edge lof the casing as is usually the CaSe.

7 and 8 indicate opposed locking bolts which are pivotally mounted at their ends, as at 7', 8, within the casing 3. Said locking bolts are provided with thickened or enlarged portions 9 and l0 adjacent their pivoted ends, and their opposite ends terminate in heads A11 having inner bevelled edges as illustrated. The said locking bolts 7 and 8 are also connected together by a spring 12 the action of which tends to draw them, or cause themY to swing, towards each other on their pivots 7 and 8 -into engagement with the posts or stops 13 which are mounted in the wall of the casing.

A keeper, the body of which comprises an angle piece and which is indicated at j verse member 15 having a vertically extending member 16 secured thereto and forming hooks with said transverse member. Said member 16 has an outer curved surface as clearly shown in Fig. 5. All the parts of said keeper are preferably cast as a single integral structure.

The casing 3 is provided adjacent its inner solid side wall 17 with a slot 18 ex tending com letely through both the front and-rear wa l of the casing through which slot the hooked end of the keeper is adapted to extend as shown in Fig. 1. Thus, if a jimmy or other tool were inserted in the space between the door and door jamb and by any possibility extended through the slot 18 instead of striking the reinforced beaded portion 6, asbreaking or displacement of the casing would still be impossible by lateral or vertical pressure,` 'as the jimmy or tool would contact with the closed walls of the slot 18 when the displacement of the casing is attempted and would accordingly prevent the same. This is a distinct advantage over certain previous forms of casings havin a slot open at their outer side, `through-wh1ch the keeper extends, and which may be laterally jimmied inwardly in .an obvious manner as there is no obstrlllction to provide a stop for the jimmy or too 19 indicates the lface plate and 2O the tumbler' barrel of a cylinder lock of the well known -type which is anchored as is customary, to the casing by suitable bolts 21. Extending through the casing and through a. cam 22, which it is adapted to actuate,A is the operating spindle 23. 24 indicates a.

latch knob which is mounted on the casing' lock and turned therein or by turningvv the latch bolt Q3 on the inside of the door whereby the cams are actuated in an obvious manner. The configuration of the cams is such, that when either is turned through an angle of 45 or to a position at right angles to that shown in Fig. 2, the locking bolts 7 and 8 are in open position and are held in that position |by the cam until it is again turned in either direction.

lVhen the door is open and the locking bolts are in normal position or that position shown in F ig. 2,the door may be automatically locked 'by merely closing the same without its being first necessary to manually spread the bolts apart or move them away from each other. On the closing of the door the inner bevelled edge of the heads 11 of the locking bolts strike against the curved surface of the vertically extending member 16 of the keeper along which they move in opposite directions against the action of the spring 12 and finally ride over the top and bottom edges of the vertically extending members and are brought into engagement, due to the action of the spring 12, with the transverse member l5 of the keeper in an obvious manner.

That I claim as my invention is:-

In ai lock, the combination with a keeper comprising a transverse member and a vertical member secured thereto having an outer curved surface, of a lock casing adapted to be fastened to a door with the end of said casing extending over the space between the door and door jamb and presenting a solid wall to said space, said casing being provided with a slot extending completely therethrough and having closedy walls Vthrough which slot the keeper extends, a pair of separate locking bolts independent of each other and pivoterl within the casing and having bevelied heads adapted to strike against and ride over the curved surface of the vertical member of said keeperwhereby said locking .bolts will automatically interlock with the keeper upon the closing of the door, a cam mounted in said casing intermediate said locking bolts and independent thereof and engaging the same and a spring fastened to and connecting said locking bolts and tending by itsy action to draw them towards each other.

Signed at New York, in the county of New I vYork and State of New of December A. D. 1919.

` ,SAMUEL SEGAL.

York, this .30th day ,Vitnesses F. G. TowNsnND, GEORGE E. BROWN. 

